On 2019-08-13 05:48, Sasha Levin wrote:

Hi,

[This is an automated email]

This commit has been processed because it contains a "Fixes:" tag, fixing commit: ee7e5516be4f generic: per-device coherent dma allocator.

The bot has tested the following trees: v5.2.8, v4.19.66, v4.14.138, v4.9.189, v4.4.189.

v5.2.8: Build OK! v4.19.66: Failed to apply! Possible dependencies: Unable to calculate

v4.14.138: Failed to apply! Possible dependencies: Unable to calculate

v4.9.189: Failed to apply! Possible dependencies: 43fc509c3efb ("dma-coherent: introduce interface for default DMA pool") 92f66f84d969 ("arm64: Fix the DMA mmap and get_sgtable API with DMA_ATTR_FORCE_CONTIGUOUS") 93228b44c33a ("drivers: dma-coherent: Introduce default DMA pool") c41f9ea998f3 ("drivers: dma-coherent: Account dma_pfn_offset when used with device tree")

v4.4.189: Failed to apply! Possible dependencies: 052c96dbe33b ("arc: convert to dma_map_ops") 20d666e41166 ("dma-mapping: remove <asm-generic/dma-coherent.h>") 340f3039acd6 ("m68k: convert to dma_map_ops") 4605f04b2893 ("c6x: convert to dma_map_ops") 5348c1e9e0dc ("metag: convert to dma_map_ops") 5a1a67f1d7fe ("nios2: convert to dma_map_ops") 6f62097583e7 ("blackfin: convert to dma_map_ops") 79387179e2e4 ("parisc: convert to dma_map_ops") a34a517ac96c ("avr32: convert to dma_map_ops") e1c7e324539a ("dma-mapping: always provide the dma_map_ops based implementation") e20dd88995df ("cris: convert to dma_map_ops") eae075196305 ("frv: convert to dma_map_ops") f151341ca00e ("mn10300: convert to dma_map_ops")

NOTE: The patch will not be queued to stable trees until it is upstream.

How should we proceed with this patch?

-- Thanks, Sasha

If everyone is okay with this patch, then we can just apply it on the mainline kernel. The change can be backported to the older kernels at a later point in time.

Thanks, Isaac